This article will introduce to you how to install PHP7.0 in Linux environment. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.
Comparison between PHP7 and HHVM
The performance of PHP7 in real scenarios is indeed equivalent to that of HHVM, and even exceeds HHVM in some scenarios. The operation and maintenance of HHVM is complex and it is a multi-threaded model. This means that if a thread causes a crash, the entire service will hang and it will not automatically restart. In addition, it uses JIT, which means that it needs to be warmed up after restarting. Without preheating, the performance will be worse. Moreover, the multi-threaded model is difficult to debug, which is very unsuitable for web services that pursue stability.
For Nginx and previous versions of PHP7.0, please refer to this article: Linux environment Nginx installation and debugging and PHP installation
The official version of PHP7.0 has been released around November 2015 , is currently the PHP7.0.2 version. I first started with the first beta version of php7 in August 2015, and now the official version is released.
linux version: 64-bit CentOS 6.6
Nginx version: nginx1.8.0
php version: php-7.0.2
Download
# wget http://php.net/get/php-7.0.2.tar.gz/from/a/mirror
It is recommended to check the installation help file before installation INSTALL
Unzip the installation
# tar zxvf php-7.0.2.tar.gz # cd php-7.0.2
First check the installation help
# ./configure --help # ./configure --prefix=/usr/local/php \ --with-curl \ --with-freetype-dir \ --with-gd \ --with-gettext \ --with-iconv-dir \ --with-kerberos \ --with-libdir=lib64 \ --with-libxml-dir \ --with-mysqli \ --with-openssl \ --with-pcre-regex \ --with-pdo-mysql \ --with-pdo-sqlite \ --with-pear \ --with-png-dir \ --with-xmlrpc \ --with-xsl \ --with-zlib \ --enable-fpm \ --enable-bcmath \ --enable-libxml \ --enable-inline-optimization \ --enable-gd-native-ttf \ --enable-mbregex \ --enable-mbstring \ --enable-opcache \ --enable-pcntl \ --enable-shmop \ --enable-soap \ --enable-sockets \ --enable-sysvsem \ --enable-xml \ --enable-zip
If configured Error, you need to install the required modules, directly yum to install the dependent libraries together
# yum -y install libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel mysql pcre-devel
Note: There are several configurations that cannot be configured when installing php7beta3, you need to yum. Now php-7.0.2 does not need to do this.
# yum -y install curl-devel # yum -y install libxslt-devel
Compile and install
# make && make install
Configuration file
# cp php.ini-development /usr/local/php/lib/php.ini # cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf # cp /usr/local/php/etc/php-fpm.d/www.conf.default /usr/local/php/etc/php-fpm.d/www.conf # cp -R ./sapi/fpm/php-fpm /etc/init.d/php-fpm
It should be noted that the www.conf configuration file configuration in php7 phpfpm port number and other information, if you modify the default 9000 port number, you need to change it here, and then change the nginx configuration
Start
# /etc/init.d/php-fpm
View phpinfo()
Performance analysis comparison of php7 and php5
<?php
//time /usr/local/php5/bin/php search_by_key.php
$a = array();
for($i=0;$i<600000;$i++){
$a[$i] = $i;
}
foreach($a as $i)
{
array_key_exists($i, $a);
}
?>Generate an array of 600,000 elements, and determine whether the key is by searching for the key exist.
PHP version 5.4.44
[root@localhost www5.4.44]# time /usr/local/php5.4.44/bin/php search_by_key.php
real 0m0 .351s
user 0m0.300s
sys 0m0.050s
PHP version 5.5.28
[root@localhost www]# time /usr/ local/php/bin/php search_by_key.php
real 0m0.361s
user 0m0.304s
sys 0m0.057s
PHP 7.0.0 Version
[root@localhost www7]# time /usr/local/php7/bin/php search_by_key.php
real 0m0.114s
user 0m0.097s
sys 0m0.017s
Obviously the performance of php7 is 3 times that of php5!
Configure opcache
Official website address: http://php.net/opcache
Use the following recommended settings to get better performance:
opcache.memory_consumption=128 opcache.interned_strings_buffer=8 opcache.max_accelerated_files=4000 opcache.revalidate_freq=60 opcache.fast_shutdown=1 opcache.enable_cli=1
You can also disable opcache.save_comments and enable opcache.enable_file_override. It should be reminded that the above configuration must be rigorously tested before being used in a production environment. Because there is a known issue with the above configuration, it will cause exceptions in some frameworks and applications, especially when there are documents using comment annotations.
vim /usr/local/php7/etc/php.ini
# Join
Restart
# killall php-fpm # /etc/init.d/php-fpm
If the above picture is not clear, you can use the Opcache status test code at the end of the article (https:/ /gist.github.com/ck-on/4959032) for demonstration:
Opcache status test code (https://gist.github.com /ck-on/4959032) for demonstration:
<?php
/*
OCP - Opcache Control Panel (aka Zend Optimizer+ Control Panel for PHP)
Author: _ck_ (with contributions by GK, stasilok)
Version: 0.1.6
Free for any kind of use or modification, I am not responsible for anything, please share your improvements
* revision history
0.1.6 2013-04-12 moved meta to footer so graphs can be higher and reduce clutter
0.1.5 2013-04-12 added graphs to visualize cache state, please report any browser/style bugs
0.1.4 2013-04-09 added "recheck" to update files when using large revalidate_freq (or validate_timestamps=Off)
0.1.3 2013-03-30 show host and php version, can bookmark with hashtag ie. #statistics - needs new layout asap
0.1.2 2013-03-25 show optimization levels, number formatting, support for start_time in 7.0.2
0.1.1 2013-03-18 today Zend completely renamed Optimizer+ to OPcache, adjusted OCP to keep working
0.1.0 2013-03-17 added group/sort indicators, replaced "accelerator_" functions with "opcache_"
0.0.6 2013-03-16 transition support as Zend renames product and functions for PHP 5.5 (stasilok)
0.0.5 2013-03-10 added refresh button (GK)
0.0.4 2013-02-18 added file grouping and sorting (click on headers) - code needs cleanup but gets the job done
0.0.2 2013-02-14 first public release
* known problems/limitations:
Unlike APC, the Zend OPcache API
- cannot determine when a file was put into the cache
- cannot change settings on the fly
- cannot protect opcache functions by restricting execution to only specific scripts/paths
* todo:
Extract variables for prefered ordering and better layout instead of just dumping into tables
File list filter
*/
// ini_set('display_errors',1); error_reporting(-1);
if ( count(get_included_files())>1 || php_sapi_name()=='cli' || empty($_SERVER['REMOTE_ADDR']) ) { die; } // weak block against indirect access
$time=time();
define('CACHEPREFIX',function_exists('opcache_reset')?'opcache_':(function_exists('accelerator_reset')?'accelerator_':''));
if ( !empty($_GET['RESET']) ) {
if ( function_exists(CACHEPREFIX.'reset') ) { call_user_func(CACHEPREFIX.'reset'); }
header( 'Location: '.str_replace('?'.$_SERVER['QUERY_STRING'],'',$_SERVER['REQUEST_URI']) );
exit;
}
if ( !empty($_GET['RECHECK']) ) {
if ( function_exists(CACHEPREFIX.'invalidate') ) {
$recheck=trim($_GET['RECHECK']); $files=call_user_func(CACHEPREFIX.'get_status');
if (!empty($files['scripts'])) {
foreach ($files['scripts'] as $file=>$value) {
if ( $recheck==='1' || strpos($file,$recheck)===0 ) call_user_func(CACHEPREFIX.'invalidate',$file);
}
}
header( 'Location: '.str_replace('?'.$_SERVER['QUERY_STRING'],'',$_SERVER['REQUEST_URI']) );
} else { echo 'Sorry, this feature requires Zend Opcache newer than April 8th 2013'; }
exit;
}
?><!DOCTYPE html>
<html>
<head>
<title>OCP - Opcache Control Panel</title>
<meta name="ROBOTS" content="NOINDEX,NOFOLLOW,NOARCHIVE" />
<style type="text/css">
body {background-color: #fff; color: #000;}
body, td, th, h1, h2 {font-family: sans-serif;}
pre {margin: 0px; font-family: monospace;}
a:link,a:visited {color: #000099; text-decoration: none;}
a:hover {text-decoration: underline;}
table {border-collapse: collapse; width: 600px; }
.center {text-align: center;}
.center table { margin-left: auto; margin-right: auto; text-align: left;}
.center th { text-align: center !important; }
.middle {vertical-align:middle;}
td, th { border: 1px solid #000; font-size: 75%; vertical-align: baseline; padding: 3px; }
h1 {font-size: 150%;}
h2 {font-size: 125%;}
.p {text-align: left;}
.e {background-color: #ccccff; font-weight: bold; color: #000; width:50%; white-space:nowrap;}
.h {background-color: #9999cc; font-weight: bold; color: #000;}
.v {background-color: #cccccc; color: #000;}
.vr {background-color: #cccccc; text-align: right; color: #000; white-space: nowrap;}
.b {font-weight:bold;}
.white, .white a {color:#fff;}
img {float: right; border: 0px;}
hr {width: 600px; background-color: #cccccc; border: 0px; height: 1px; color: #000;}
.meta, .small {font-size: 75%; }
.meta {margin: 2em 0;}
.meta a, th a {padding: 10px; white-space:nowrap; }
.buttons {margin:0 0 1em;}
.buttons a {margin:0 15px; background-color: #9999cc; color:#fff; text-decoration:none; padding:1px; border:1px solid #000; display:inline-block; width:5em; text-align:center;}
#files td.v a {font-weight:bold; color:#9999cc; margin:0 10px 0 5px; text-decoration:none; font-size:120%;}
#files td.v a:hover {font-weight:bold; color:#ee0000;}
.graph {display:inline-block; width:145px; margin:1em 0 1em 1px; border:0; vertical-align:top;}
.graph table {width:100%; height:150px; border:0; padding:0; margin:5px 0 0 0; position:relative;}
.graph td {vertical-align:middle; border:0; padding:0 0 0 5px;}
.graph .bar {width:25px; text-align:right; padding:0 2px; color:#fff;}
.graph .total {width:34px; text-align:center; padding:0 5px 0 0;}
.graph .total p {border:1px dashed #888; border-right:0; height:99%; width:12px; position:absolute; bottom:0; left:17px; z-index:-1;}
.graph .total span {background:#fff; font-weight:bold;}
.graph .actual {text-align:right; font-weight:bold; padding:0 5px 0 0;}
.graph .red {background:#ee0000;}
.graph .green {background:#00cc00;}
.graph .brown {background:#8B4513;}
</style>
<!--[if lt IE 9]><script type="text/javascript" defer="defer">
window.οnlοad=function(){var i,t=document.getElementsByTagName('table');for(i=0;i<t.length;i++){if(t[i].parentNode.className=='graph')t[i].style.height=150-(t[i].clientHeight-150)+'px';}}
</script><![endif]-->
</head>
<body>
<p class="center">
<h1><a href="?">Opcache Control Panel</a></h1>
<p class="buttons">
<a href="?ALL=1">Details</a>
<a href="?FILES=1&GROUP=2&SORT=3">Files</a>
<a href="?RESET=1" οnclick="return confirm('RESET cache ?')">Reset</a>
<?php if ( function_exists(CACHEPREFIX.'invalidate') ) { ?>
<a href="?RECHECK=1" οnclick="return confirm('Recheck all files in the cache ?')">Recheck</a>
<?php } ?>
<a href="?" οnclick="window.location.reload(true); return false">Refresh</a>
</p>
<?php
if ( !function_exists(CACHEPREFIX.'get_status') ) { echo '<h2>Opcache not detected?</h2>'; die; }
if ( !empty($_GET['FILES']) ) { echo '<h2>files cached</h2>'; files_display(); echo '</p></body></html>'; exit; }
if ( !(isset($_REQUEST['GRAPHS']) && !$_REQUEST['GRAPHS']) && CACHEPREFIX=='opcache_') { graphs_display(); if ( !empty($_REQUEST['GRAPHS']) ) { exit; } }
ob_start(); phpinfo(8); $phpinfo = ob_get_contents(); ob_end_clean(); // some info is only available via phpinfo? sadly buffering capture has to be used
if ( !preg_match( '/module\_Zend (Optimizer\+|OPcache).+?(\<table[^>]*\>.+?\<\/table\>).+?(\<table[^>]*\>.+?\<\/table\>)/s', $phpinfo, $opcache) ) { } // todo
if ( function_exists(CACHEPREFIX.'get_configuration') ) { echo '<h2>general</h2>'; $configuration=call_user_func(CACHEPREFIX.'get_configuration'); }
$host=function_exists('gethostname')?@gethostname():@php_uname('n'); if (empty($host)) { $host=empty($_SERVER['SERVER_NAME'])?$_SERVER['HOST_NAME']:$_SERVER['SERVER_NAME']; }
$version=array('Host'=>$host);
$version['PHP Version']='PHP '.(defined('PHP_VERSION')?PHP_VERSION:'???').' '.(defined('PHP_SAPI')?PHP_SAPI:'').' '.(defined('PHP_OS')?' '.PHP_OS:'');
$version['Opcache Version']=empty($configuration['version']['version'])?'???':$configuration['version'][CACHEPREFIX.'product_name'].' '.$configuration['version']['version'];
print_table($version);
if ( !empty($opcache[2]) ) { echo preg_replace('/\<tr\>\<td class\="e"\>[^>]+\<\/td\>\<td class\="v"\>[0-9\,\. ]+\<\/td\>\<\/tr\>/','',$opcache[2]); }
if ( function_exists(CACHEPREFIX.'get_status') && $status=call_user_func(CACHEPREFIX.'get_status') ) {
$uptime=array();
if ( !empty($status[CACHEPREFIX.'statistics']['start_time']) ) {
$uptime['uptime']=time_since($time,$status[CACHEPREFIX.'statistics']['start_time'],1,'');
}
if ( !empty($status[CACHEPREFIX.'statistics']['last_restart_time']) ) {
$uptime['last_restart']=time_since($time,$status[CACHEPREFIX.'statistics']['last_restart_time']);
}
if (!empty($uptime)) {print_table($uptime);}
if ( !empty($status['cache_full']) ) { $status['memory_usage']['cache_full']=$status['cache_full']; }
echo '<h2 id="memory">memory</h2>';
print_table($status['memory_usage']);
unset($status[CACHEPREFIX.'statistics']['start_time'],$status[CACHEPREFIX.'statistics']['last_restart_time']);
echo '<h2 id="statistics">statistics</h2>';
print_table($status[CACHEPREFIX.'statistics']);
}
if ( empty($_GET['ALL']) ) { meta_display(); exit; }
if ( !empty($configuration['blacklist']) ) { echo '<h2 id="blacklist">blacklist</h2>'; print_table($configuration['blacklist']); }
if ( !empty($opcache[3]) ) { echo '<h2 id="runtime">runtime</h2>'; echo $opcache[3]; }
$name='zend opcache'; $functions=get_extension_funcs($name);
if (!$functions) { $name='zend optimizer+'; $functions=get_extension_funcs($name); }
if ($functions) { echo '<h2 id="functions">functions</h2>'; print_table($functions); } else { $name=''; }
$level=trim(CACHEPREFIX,'_').'.optimization_level';
if (isset($configuration['directives'][$level])) {
echo '<h2 id="optimization">optimization levels</h2>';
$levelset=strrev(base_convert($configuration['directives'][$level], 10, 2));
$levels=array(
1=>'<a href="http://wikipedia.org/wiki/Common_subexpression_elimination">Constants subexpressions elimination</a> (CSE) true, false, null, etc.<br />Optimize series of ADD_STRING / ADD_CHAR<br />Convert CAST(IS_BOOL,x) into BOOL(x)<br />Convert <a href="http://www.php.net/manual/internals2.opcodes.init-fcall-by-name.php">INIT_FCALL_BY_NAME</a> + <a href="http://www.php.net/manual/internals2.opcodes.do-fcall-by-name.php">DO_FCALL_BY_NAME</a> into <a href="http://www.php.net/manual/internals2.opcodes.do-fcall.php">DO_FCALL</a>',
2=>'Convert constant operands to expected types<br />Convert conditional <a href="http://php.net/manual/internals2.opcodes.jmp.php">JMP</a> with constant operands<br />Optimize static <a href="http://php.net/manual/internals2.opcodes.brk.php">BRK</a> and <a href="<a href="http://php.net/manual/internals2.opcodes.cont.php">CONT</a>',
3=>'Convert $a = $a + expr into $a += expr<br />Convert $a++ into ++$a<br />Optimize series of <a href="http://php.net/manual/internals2.opcodes.jmp.php">JMP</a>',
4=>'PRINT and ECHO optimization (<a href="https://github.com/zend-dev/ZendOptimizerPlus/issues/73">defunct</a>)',
5=>'Block Optimization - most expensive pass<br />Performs many different optimization patterns based on <a href="http://wikipedia.org/wiki/Control_flow_graph">control flow graph</a> (CFG)',
9=>'Optimize <a href="http://wikipedia.org/wiki/Register_allocation">register allocation</a> (allows re-usage of temporary variables)',
10=>'Remove NOPs'
);
echo '<table width="600" border="0" cellpadding="3"><tbody><tr class="h"><th>Pass</th><th>Description</th></tr>';
foreach ($levels as $pass=>$description) {
$disabled=substr($levelset,$pass-1,1)!=='1' || $pass==4 ? ' white':'';
echo '<tr><td class="v center middle'.$disabled.'">'.$pass.'</td><td class="v'.$disabled.'">'.$description.'</td></tr>';
}
echo '</table>';
}
if ( isset($_GET['DUMP']) ) {
if ($name) { echo '<h2 id="ini">ini</h2>'; print_table(ini_get_all($name,true)); }
foreach ($configuration as $key=>$value) { echo '<h2>',$key,'</h2>'; print_table($configuration[$key]); }
exit;
}
meta_display();
echo '</p></body></html>';
exit;
function time_since($time,$original,$extended=0,$text='ago') {
$time = $time - $original;
$day = $extended? floor($time/86400) : round($time/86400,0);
$amount=0; $unit='';
if ( $time < 86400) {
if ( $time < 60) { $amount=$time; $unit='second'; }
elseif ( $time < 3600) { $amount=floor($time/60); $unit='minute'; }
else { $amount=floor($time/3600); $unit='hour'; }
}
elseif ( $day < 14) { $amount=$day; $unit='day'; }
elseif ( $day < 56) { $amount=floor($day/7); $unit='week'; }
elseif ( $day < 672) { $amount=floor($day/30); $unit='month'; }
else { $amount=intval(2*($day/365))/2; $unit='year'; }
if ( $amount!=1) {$unit.='s';}
if ($extended && $time>60) { $text=' and '.time_since($time,$time<86400?($time<3600?$amount*60:$amount*3600):$day*86400,0,'').$text; }
return $amount.' '.$unit.' '.$text;
}
function print_table($array,$headers=false) {
if ( empty($array) || !is_array($array) ) {return;}
echo '<table border="0" cellpadding="3" width="600">';
if (!empty($headers)) {
if (!is_array($headers)) {$headers=array_keys(reset($array));}
echo '<tr class="h">';
foreach ($headers as $value) { echo '<th>',$value,'</th>'; }
echo '</tr>';
}
foreach ($array as $key=>$value) {
echo '<tr>';
if ( !is_numeric($key) ) {
$key=ucwords(str_replace('_',' ',$key));
echo '<td class="e">',$key,'</td>';
if ( is_numeric($value) ) {
if ( $value>1048576) { $value=round($value/1048576,1).'M'; }
elseif ( is_float($value) ) { $value=round($value,1); }
}
}
if ( is_array($value) ) {
foreach ($value as $column) {
echo '<td class="v">',$column,'</td>';
}
echo '</tr>';
}
else { echo '<td class="v">',$value,'</td></tr>'; }
}
echo '</table>';
}
function files_display() {
$status=call_user_func(CACHEPREFIX.'get_status');
if ( empty($status['scripts']) ) {return;}
if ( isset($_GET['DUMP']) ) { print_table($status['scripts']); exit;}
$time=time(); $sort=0;
$nogroup=preg_replace('/\&?GROUP\=[\-0-9]+/','',$_SERVER['REQUEST_URI']);
$nosort=preg_replace('/\&?SORT\=[\-0-9]+/','',$_SERVER['REQUEST_URI']);
$group=empty($_GET['GROUP'])?0:intval($_GET['GROUP']); if ( $group<0 || $group>9) { $group=1;}
$groupset=array_fill(0,9,''); $groupset[$group]=' class="b" ';
echo '<p class="meta">
<a ',$groupset[0],'href="',$nogroup,'">ungroup</a> |
<a ',$groupset[1],'href="',$nogroup,'&GROUP=1">1</a> |
<a ',$groupset[2],'href="',$nogroup,'&GROUP=2">2</a> |
<a ',$groupset[3],'href="',$nogroup,'&GROUP=3">3</a> |
<a ',$groupset[4],'href="',$nogroup,'&GROUP=4">4</a> |
<a ',$groupset[5],'href="',$nogroup,'&GROUP=5">5</a>
</p>';
if ( !$group ) { $files =& $status['scripts']; }
else {
$files=array();
foreach ($status['scripts'] as $data) {
if ( preg_match('@^[/]([^/]+[/]){'.$group.'}@',$data['full_path'],$path) ) {
if ( empty($files[$path[0]])) { $files[$path[0]]=array('full_path'=>'','files'=>0,'hits'=>0,'memory_consumption'=>0,'last_used_timestamp'=>'','timestamp'=>''); }
$files[$path[0]]['full_path']=$path[0];
$files[$path[0]]['files']++;
$files[$path[0]]['memory_consumption']+=$data['memory_consumption'];
$files[$path[0]]['hits']+=$data['hits'];
if ( $data['last_used_timestamp']>$files[$path[0]]['last_used_timestamp']) {$files[$path[0]]['last_used_timestamp']=$data['last_used_timestamp'];}
if ( $data['timestamp']>$files[$path[0]]['timestamp']) {$files[$path[0]]['timestamp']=$data['timestamp'];}
}
}
}
if ( !empty($_GET['SORT']) ) {
$keys=array(
'full_path'=>SORT_STRING,
'files'=>SORT_NUMERIC,
'memory_consumption'=>SORT_NUMERIC,
'hits'=>SORT_NUMERIC,
'last_used_timestamp'=>SORT_NUMERIC,
'timestamp'=>SORT_NUMERIC
);
$titles=array('','path',$group?'files':'','size','hits','last used','created');
$offsets=array_keys($keys);
$key=intval($_GET['SORT']);
$direction=$key>0?1:-1;
$key=abs($key)-1;
$key=isset($offsets[$key])&&!($key==1&&empty($group))?$offsets[$key]:reset($offsets);
$sort=array_search($key,$offsets)+1;
$sortflip=range(0,7); $sortflip[$sort]=-$direction*$sort;
if ( $keys[$key]==SORT_STRING) {$direction=-$direction; }
$arrow=array_fill(0,7,''); $arrow[$sort]=$direction>0?' ▼':' ▲';
$direction=$direction>0?SORT_DESC:SORT_ASC;
$column=array(); foreach ($files as $data) { $column[]=$data[$key]; }
array_multisort($column, $keys[$key], $direction, $files);
}
echo '<table border="0" cellpadding="3" width="960" id="files">
<tr class="h">';
foreach ($titles as $column=>$title) {
if ($title) echo '<th><a href="',$nosort,'&SORT=',$sortflip[$column],'">',$title,$arrow[$column],'</a></th>';
}
echo ' </tr>';
foreach ($files as $data) {
echo '<tr>
<td class="v" nowrap><a title="recheck" href="?RECHECK=',rawurlencode($data['full_path']),'">x</a>',$data['full_path'],'</td>',
($group?'<td class="vr">'.number_format($data['files']).'</td>':''),
'<td class="vr">',number_format(round($data['memory_consumption']/1024)),'K</td>',
'<td class="vr">',number_format($data['hits']),'</td>',
'<td class="vr">',time_since($time,$data['last_used_timestamp']),'</td>',
'<td class="vr">',empty($data['timestamp'])?'':time_since($time,$data['timestamp']),'</td>
</tr>';
}
echo '</table>';
}
function graphs_display() {
$graphs=array();
$colors=array('green','brown','red');
$primes=array(223, 463, 983, 1979, 3907, 7963, 16229, 32531, 65407, 130987);
$configuration=call_user_func(CACHEPREFIX.'get_configuration');
$status=call_user_func(CACHEPREFIX.'get_status');
$graphs['memory']['total']=$configuration['directives']['opcache.memory_consumption'];
$graphs['memory']['free']=$status['memory_usage']['free_memory'];
$graphs['memory']['used']=$status['memory_usage']['used_memory'];
$graphs['memory']['wasted']=$status['memory_usage']['wasted_memory'];
$graphs['keys']['total']=$status[CACHEPREFIX.'statistics']['max_cached_keys'];
foreach ($primes as $prime) { if ($prime>=$graphs['keys']['total']) { $graphs['keys']['total']=$prime; break;} }
$graphs['keys']['free']=$graphs['keys']['total']-$status[CACHEPREFIX.'statistics']['num_cached_keys'];
$graphs['keys']['scripts']=$status[CACHEPREFIX.'statistics']['num_cached_scripts'];
$graphs['keys']['wasted']=$status[CACHEPREFIX.'statistics']['num_cached_keys']-$status[CACHEPREFIX.'statistics']['num_cached_scripts'];
$graphs['hits']['total']=0;
$graphs['hits']['hits']=$status[CACHEPREFIX.'statistics']['hits'];
$graphs['hits']['misses']=$status[CACHEPREFIX.'statistics']['misses'];
$graphs['hits']['blacklist']=$status[CACHEPREFIX.'statistics']['blacklist_misses'];
$graphs['hits']['total']=array_sum($graphs['hits']);
$graphs['restarts']['total']=0;
$graphs['restarts']['manual']=$status[CACHEPREFIX.'statistics']['manual_restarts'];
$graphs['restarts']['keys']=$status[CACHEPREFIX.'statistics']['hash_restarts'];
$graphs['restarts']['memory']=$status[CACHEPREFIX.'statistics']['oom_restarts'];
$graphs['restarts']['total']=array_sum($graphs['restarts']);
foreach ( $graphs as $caption=>$graph) {
echo '<p class="graph"><p class="h">',$caption,'</p><table border="0" cellpadding="0" cellspacing="0">';
foreach ($graph as $label=>$value) {
if ($label=='total') { $key=0; $total=$value; $totaldisplay='<td rowspan="3" class="total"><span>'.($total>999999?round($total/1024/1024).'M':($total>9999?round($total/1024).'K':$total)).'</span><p></p></td>'; continue;}
$percent=$total?floor($value*100/$total):''; $percent=!$percent||$percent>99?'':$percent.'%';
echo '<tr>',$totaldisplay,'<td class="actual">', ($value>999999?round($value/1024/1024).'M':($value>9999?round($value/1024).'K':$value)),'</td><td class="bar ',$colors[$key],'" height="',$percent,'">',$percent,'</td><td>',$label,'</td></tr>';
$key++; $totaldisplay='';
}
echo '</table></p>',"\n";
}
}
function meta_display() {
?>
<p class="meta">
<a href="http://files.zend.com/help/Zend-Server-6/content/zendoptimizerplus.html">directives guide</a> |
<a href="http://files.zend.com/help/Zend-Server-6/content/zend_optimizer+_-_php_api.htm">functions guide</a> |
<a href="https://wiki.php.net/rfc/optimizerplus">wiki.php.net</a> |
<a href="http://pecl.php.net/package/ZendOpcache">pecl</a> |
<a href="https://github.com/zend-dev/ZendOptimizerPlus/">Zend source</a> |
<a href="https://gist.github.com/ck-on/4959032/?ocp.php">OCP latest</a>
</p>
<?php
}Recommended learning: php video tutorial
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